Road scraper and conveyer



Aug. 7, 1923.

P. V. RANDOLPH ROAD SCRAPER AND CONVEYER Filed April 11 1921 3 Sheets-Sheet l INVENTOR ATTORNEY Patented Aug. '7, i923.

Maura mas:

PAUL v. nAnnoLrI- or ENFIELD, nonrn CAROLINA.

ROAD SGRAPEB AND GONVEYER.

Application filed April 11, 1921. Serial No. 460,327.

To all whom it may concern:

Be it known that I, PAUL V. RANDOLPH, a citizen of the United States, residing at Eniield, in the county of Halifax and State of North Carolina, have invented new and useful Improvements in Road Scrapers and Conveyers, of which the following is a specification.

My present inventionhas reference to a machine for scraping, elevating and delivering dirt from the surface of roadbeds.

My object is to produce a wheeled device of this character in which both vertically and laterally adjustable scraper blades travel over the road bed to deliver dirt therebetween into a scoop, which is also vertically adjustable, means being provided for elevating the dirt from the scoop on to a conveyer which latter delivers to a delivery member, the same being provided with an endless belt and is adjustable both vertically and laterally whereby the material therein may be delivered to one side of the road bed at desired elevations, and also whereby obstructions on the side of thc road bed may be avoided by the lateral adjustment of the chute.

It is a further object to produce a road scraping and conveying apparatus in which the ground wheels of the device are supported in adjustable bearings, whereby the body, and elements carried thereby may be properly arranged with respect to the road bed, said body including directing and. scraping means, elevating means, receiving means and delivering means all of which being operable in unison and receiving power from a single motor.

The foregoing, and many other objects which will appear as the nature of the invention is better understood, may be accomplished by a construction, combination and operative association of parts, such as is illustrated by the drawings which accompan-y and which form part of this application.

In the drawings Figure 1 is a top plan View of the improvement.

Figure 2 is a sectional view approximately on the line 22, of Figure 1.

Figure 3 is a sectional View approximate- 1y on the line 83 of Figure 1.

Figure 4 is a fragmentary perspective view illustrating the manner in which the endless belt of the delivery chute is operated, and also the manner in which the said chute is pivotally supported.

The body of the improvement is preferably .in the nature of a substantially rectangular frame, comprising longitudinal and transverse angle bars suitably connected together. At the front of the frame 1 there are journaled on the usual axle, connected to the frame in the ordinary manner, the steering wheels 2, the axle being provided with hounds 3 to which is connected the tongue .L for the draft animals. The longitudinal or side members of the frame, at the rear thereof have secured on their under faces oppositely disposed depending substantially U-shaped brackets 5. Each bracket 5 supports therein a movable bearing 6 for a stub shaft on whose outer end or spindle there is journaled a ground wheel 7. The bearings 6 have threaded openings therethrough, the threads thereof being engaged by the threaded portions 8 of rods 9; The lower ends of the rods are journaled in suitable hearings in the bottom portions of the brackets, the said rods passing through a plate 10 on the top of the frame, and also passing through bearings 11 secured to the inner sides of the longitudinal 'or side. members of the frame. The upper ends of the rods 9 are provided with hand wheels 12, and the said upper ends are supported by suitable frames '13 secured to the plate 10. The frames 18 are provided with openings through which the rods pass, and the said rods have collars 1 1 respectively that contact with the opposite faces of the top members of the frames, whereby the rods are held against longitudinal movement through the frames. By turning the hand wheels, the bearings 6 will be adj ustedin the brackets, and consequently the ground wheels 7 may be independently adjusted with respect to the frames. This is an important feature of the improvement because road beds are rounded from their central portion to the sides thereof and the arrangement permits of the road engaging elements of the improvement properly contacting with the road bed.

The plate 10, of course, provides a portion of the top of the frame, but the main top, and what may be referred to as the body of the frame is also in the nature of a plate arranged approximately at the centervof the frame. This plate is indicated by the numeral 15.

Forward of the body plate 15, the side members of the frame have pivoted, as at 16, to depending lugs 17, grooved bars 18. The bars are directed toward the ground wheels, and have their free ends rounded down-- wardly and pivotally connected to scraper blades 19 respectively. Received in the grooves of the respective bars 18 are boxings provided at theends of a channeled iron 19 The channeled iron has pivotally secured thereto, as-at 20, an upstanding threaded rod 21 that passes through an opening 22 .in the body plate 15. On the upper portion of the rod 21 there is lined a combination nut and gear 23 which meshes with a gear 23 on the lower end of a rod 24. The upper end of the rod is preferably provided with a handlelike portion 24. By rotating the gears the rod 21 will be vertically adjusted, and con sequently the bars 18 will. be swung from their pivoted ends 16 either toward or away from the body of the device, and consequently the scraper blades 19 will be brought eithertoward or away from the said body. A scoop 25 is arranged adjacent the scraper blades 19 and has its bottom portion normally disposed at adownward inclination so that the point thereof is in normal contact with the road bed. The scoop is journaledon a shaft 26 which is mounted in suitable bearings which are secured to and depend from the side members of the frame.

Secured to the side members of the frame are upwardly directed angularly disposed plates 27 connected at intervals by trans verse members 28. The members 27 may be extended to provide bearings for the shaft 26. The members 27 have journaled there between, at suitable spaced intervals shafts 29 and 30 respectively. The shaft 30 is journaled between the upper ends of the said members 27, the shafts 29 being disposed preferably equi-distantly spaced from each other and from theshafts 30 and 26. On the shafts 26, 29 and'BO, adjacent to the ends thereof thereare secured sprocket wheels 31 around which are trained sprocket chains 82. The respective pairs of chains are connected together by flights which, in thepresent instance, are in the nature of buckets 33. This construction provides an elevator, whereby material directed into the scoop by the scraper blades 19 will be received in the buckets of the elevator, raised and delivered into a receiving conveyer which will presently be described.

On the body plate 15 there is secured a vertically disposed frame which is broadly indicated by the numeral 84-. On this frame, and arranged transversely with respect to the body 15 are supported the side boards 35 for an endless receiving conveyor 36. The conveyer is, of course, disposed below the delivery end of the elevator, and the belt of the conveyer is trained over rollers 37 secured on shafts 38that-arejournaled in suitablebearings 39 on the-frame 84.-

Below, and inward of the delivery end of the receiving conveyer there is a second vertical frame 40. The frame 40 has its top 41 provided with an angular-roll 42 that forms a guideway for rollers 43 which are journ'aled in depending members 44 on a plate 45. The plate 45 has angle ends 46 "respectively hat receive therethro'ugh and providejournals for a shaft 47, the said shaft passing through depending ears 48 on the side bars 45) for an endless conveyer. On the shaft 47 there is keyed a-pinion 51 that is in mesh with a pin on 52' disposed approximately centrally on the'upper face of the plate 45, the stub shaft 53 for the pinion 52 passing through bearing openings iii the said plate 45 and in the top 41 of the frame-40. The

stub shaft has on its lower end a gear- 54, which is in mesh with a similar gear 55 provided on one end of a stub shaft 56, the said shaft being journaled in suitable bearings provided by the frame 40, one of said bean ings being in the nature of an opening in one of the outer inclined uprights. On the outer end of the stub shaft 56 there is secured a sprocket wheel 57. 5 On one end of the shaft 47 there is a pinion '58'which is in mesh with a toothed wheel 59 secured on the'enid of'a shaft 60 that carries the upper directing roller for the belt of the endless delivery conveyer 50. The plate 4.5 has integrally formed on one of its endsan angle member in the nature of a handle 61, and by manipulating this handle, the said plate,'to'gether with the delivery conveyer may be swung on the vertically disposed stub shaft which connects the plate to the frame, and in this manner the delivery conveyer may be adjusted laterally with respect to the frame 1.

To the side boards 49 of the delivery conveyer-50, at the outer ends thereof there is pivoted a yoke 62, and to this yoke there is connected a flexible element such as'a chain or cable 63'which is trained around guide wheels 64 and 65 arranged at the front and one of the corners of the-frame 34. j The elements 63 is further trained around an otherguide wheel 66 at theopposite corner of the frame 34, and'is from thence directed around a drum 67. that is suitably journaled 'on the saidframe 34. The numeral 68 designates the operating wheel for the 'drum, suitable means (not shown), being provided between the drum and frame for'holding the drum against turning when the cable 63 has been wound on the drum for retainingithe outer end of the delivery conveyer at a desired inclination with respectto the'frame 1.

On the body plate 15 there is a" suitable motor, such as a gasoline engine 69 provided with the usual controlling means. On the drive shaft of the motor there is a gear for an endless sprocket chain 70. The chain frame, and having on its outer end a bev- I eled pinion 74 which meshes with a similar pinion 75 on a vertically disposed shaft 76.

file shaft 76 is journaled in suitable bear-v ings 77 and has secured thereon a beveled pinion 78 which is in mesh with a similar pinion 79 on a shaft 80, the said shaft being journaled in horizontal bearings 82 on the frame 34 and carrying at its outer end a pinion 83 Which is in mesh with a similar pinion 84 secured on the shaft 39 for the rollers at the delivery end of the receiving conveyer 36. The shaft 76 carries at its upper end a beveled gear 85 that is in mesh with a similar gear 86 secured on the shaft '30. By such arrangement it will be seen that When the engine is in motion the elevator will operate to deliver on to the receiving conveyor, the conveyer will operate to deliver on to the delivery conveyer, and the delivery conveyer will convey the material outwardly and deliver the same to one side of the road.

My improvement is particularly adaptable for removing dirt from road surfaceswhich have been arranged thereon by suit able machines which remove the dirt from the gutters on the sides of the road, placing the said dirt on the road surface a suitable distance inward of the gutters, but may be, of course, employed for scraping, and removing surplus dirt from the. entire surface of the road bed, and it is thought that the foregoing description, when taken in conneotion with the drawings will fully set forth the construction, operation and advantages of the improvement, but it is thought necessary to state that the nature of the invention is such as to render the 4 same susceptible to changes and modifications, so that the scope of the invention is only limited by the attached claim.

Having described the invention, 1 claim A road scraper and conveyer comprising a wheeled frame, a scoop supported beneath the frame, scraper blades respectively disposed on opposite sides of the scoop in angular relation thereto for directing material into the. scoop, means pivotally supporting the said'blades and including a threaded rod penetrating the said frame, and means for adjusting the said blades vertically of the frame and said scoop, said adjusting means including a stationary nut threadedly engaged with the said rod and means for turning the nut on the said rod.

In testimony whereof I affix my signature.

PAUL V. RANDOLPH.

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